Clutch-lever attachment for tractors



Nov. 6 1923.

Filed Jan. 23 1923 2 Sheets-Sheet 1 I 8 W m Mb m mm n m y L Nov. 6 1923.

L. CONBOY c'LuTcH LEVER ATTACHMENT FOR TRACTORS I Filed Jan. 23, 1925 2 Sheets-Sheet 2 [N 1/5 N TOR Leyfon Conboy Try A TTOR/VEYS 7 ing "drawings forming a part ofthis' Patented Nov. 1 923 V "tween-tw n mi ememes 3? application hiea rasuar zs i923, s er' arn f sm M. j

Toallwhomit'mayconcem: j Be it -known that I; Lnv'ronf C nsor, a; subject of the King-of- Great Britain, and a resident iof Asquith; Saskatchewan, -Do- 7 minion' of Canada,h ave invented a new and 1 Improved Clutch-Lever Attachment for Tractors, "f of which the following is a description. 9 Q n H,

'My invention relatesto the drive pulley of a-tra'ctor and particularly to the means.

for throwing the 'clutchin or out and applying and releasing the-brake in' unison with" the operation of the clutchr v The general object of my. invention is to provide a convenient attachment whereby the operatorof the tractor can through the medium of a lever controlthe pulley clutch and brake with convenience, a more specific" object being to provide a practical em-, bodiment of the invention reflecting practical considerations looking to "simplicity of the assemblage V and'facility of operation Reference is to be had :to the accompanys'pecificationpit being understood 'thatthe drawings are merely illustrative of one exampleof theinvention: a I

'--Figure 1 isa perspective view of a tractor; showing an embodiment '7 ofmy inventionassociated with'the drive pulley; F igureQ is aside elevation 'of the attach-v ment embodying my invention,v a tractor pulley and frame part: being indicated; in dot-anddash lines; 'o

Figure 3 is a plan view of the attachment as applied; j

Figure 4 is adetaillin. vertical section as indicated bythe line 44, Figure 3. f In the illustration the letter A indicate .the pulleyof a tractor; Bra frame part;

and C, the transmission case; In carrying out my invention in accordance with the illustrated example I provide a hand lever 10- fulcrumed by abolt 11' engaged in any one ofa series of bolt holes 12 in a bracket :13 secured to the frameB. To said lever 10 between its fulcrum bolt and'handle end is secured the rear end of a connecting rod 14:, the forward end of which connects with one arm ofa clutch lever 15 of bellcrank 'form having a clutch fork 16. Said clutch; lever 15 is fulcrumed at'the angle thereof by a vertical pin 17 on an approximately V-shaped bracket 18 secured to the frame-B and extendin' laterally outward beyond the pulley A; dhelever 10Qis i flfiQNBQi OF- su $ASKATHEWA5UCANADA:

' located adjacentthe "steering.wheelofpther. f 7' tractor oiathatgthe operator mayjlcon veniently throw" the clever. Whensaid; leyenis thrown forwa'rdlyto rock-theclutchl'ever p p 15. in'one directionronjitsspini 1 7 the iclutch fork :16 will-the mov d: laterally}. inward :to I V operatethe usual clutch of the pulley. A and? when the lever 10 is thrown rearwardlyg the clutch lever -:15 will be moved [to d s? engagethe pulley clutch.-

The operation of the clutchlever 15 serves; i J v to apply and release the brake shoe-19 which 7 has a back plate 20 or equivalent fixed part iappurtenant thereto which is pivotally secured as at 21 to a fixed bracket 22 .boltedgprotherw se rigidly I securedx to the m'ain ,bracket 18 as by. bolts "122 A screw .orf

bolt :23 has threaded engagement with the brake shoe '19*and" its backplateQO and is supported-in an: eye :bolt24c. v The screw or bolt 23 has' a set nut 25 and the eye .bolt

-- 24: has setnuts 26, the arrangement permithug the adjustmentiof the screw 23*so that w v 80. clutch lever 15, whereby said clutch lever i Wlll contactwith the said screw 23 to throwj; 5'

itsihead lies in the path of movement ofthe the-'brake shoe19 against the pulley A or permit the shoe 19; to; gravitate aw'ay' -from-j said'pulley. Thus, throughithemedium of v 1 the hand lever 10 theclutch ofthe pulley A i V is engaged or disengaged and simultaneously the brake shoe- 11 9 is released with the clutch-' ing of-the pulleyand'applied'withthe clutchingof the pulley. A brace 27 may extendfrom the-bracket 18 to any fixed part V v "of thetractoras for example the transmis sion' caseC.

I would state in'conclusion that while the 5 I embodiment of my invention, I do not limit:

illustrated" example constitutes a practical myself strictly tojthe exact details herein illustrated,'i since, manifestly, the same can I be i considerably varied withoutf departure from the spirit of'the invention as defined:

in the appended claims.

Having thus described my invention, 1 claim:

' 1. An attachment for tractors comprising tractor for operation by the'operator, a connecting rod. extending forwardly, from: said lever, aclutch lever connectedwith said rodadapted to engage ordisengage theclutch of the drive pulley of the tractor, and means to mount said clutch lever: on a fixed part of operator of the tractor,v a clutchlever ar' the tractor; together with a brake shoe, means for mounting said brake shoe on the .supporting means for said clutch lever, and

means in the path of movement of the clutch lever to be engaged by the latter for throwing said brake shoe into, engagement with the pulley.

' 2. An attachment for tractors comprising a lever, means for mounting the same on a fixed part of the tractor for operation by the ranged to engage or disengage the clutch of the drive pulleyof the tractor, and an operai a fixed part of the'tractor at the rear of the tractor for operation by the operator, a connecting rod extending forwardly from said lever, a clutch lever connected with said rod adapted to engage or disengage the clutch of the drive pulley of the tractor, and means to mount said clutch lever on a fixed part of the tractor; together with a brake shoe, means to mount said brake shoe for movement toward or from the tractor pulley, a

'member on said brake shoe disposed in the path of movement of the clutch lever for applying the brake when the clutch is released and permit the shoe togravitate to release position when the clutch is engaged, said brakeshoe member being adjustable relatively to the clutch lever.

4. An attachment for tractors comprising a hand lever, a bracket adapted to fulcrum said lever on a fixed part of the tractor adjacent to the rear end, a connecting rod extending forwardly from said lever adjacent to the tractor drive pulley, a clutch lever of bellcrank form to one arm of which said connecting rod is secured, said clutch lever having a fork to actuate the pulley clutch, and a bracket having arms adapted to be se-' cured to the frame of the tractor to extend laterally outward. beyond the pulley, said clutch lever being fulcrumed on said bracket; together with a second bracket rigid on the first bracket, a brake shoe pivotally hung on the second-mentioned bracket, and a member projecting from the brake shoe into the path of movement of the clutch lever for engagement by the latter; v

5; A tractor attachment including a hand lever, means to fulcrum said lever on a fixed part of the tractor atthe rear for opera tion by the operator oflthetractor, a connecting rod extending forwardly from'said lever, a second lever to which the forward end of the connecting rod 18 secured, a

bracket to which said second lever is fulcrumed, a brake shoe to engage the tractor pulley, means to pivotally support. said brake shoe on said bracket, and means on the brake shoe adapted to be engaged by said second lever.

6. A tractor attachment including a hand lever, means to fulcrum saidlever on a fixed part of the tractor, at the rear, for

operation by the operator of the tractor, a connecting rod extending forwardly from said lever, a second lever to which the forward end of the connecting rod is secured, a

bracket to which said second lever is ful crumed, a brake shoe to engage the tractor pulley, means to pivotally support said brake shoe on said bracket, a member having threaded engagement with the brake shoe and disposed in the pathv of movement of. said second lever, said member being adjustable longitudinally to vary its relation to said second lever, and a fixed guide appurtenant to said bracket through which said adjustable brake shoe member freely ex tends.

LEYTON CONBOY. 

